Surface Mount Power Transformer
ELECTRONICS INC.
EPC3030G-EPC3107G
Features of the EFD20-6 Series
• Low Loss Material ensures operation in High Frequency
Switching Converters such as Flyback, Buck, Boost
Topology or as Coupled Inductors
• UL1446 Class B Insulating System
• UL 94V-0 Recognized Material
• Very Low Leakage Inductance
Primary Specification
Part
Number
Connection
DCR
(Ω Max.)
Idc
(Amps)
Inductance
(µH ± 20%)
@ 0 Adc
Inductance
Change
@ Idc (Typ.)
Vt 1
(V-µSec. Max.)
98 xNs
98
98
65.3 xNs
65.3
65.3
98 xNs
98
98
65.3 xNs
65.3
65.3
98 xNs
98
98
65.3 xNs
65.3
65.3
98 xNs
98
98
65.3 xNs
65.3
65.3
113 xNs
113
113
98 xNs
98
98
98 xNs
98
98
Temp. Rise
@ Idc
(°C Typ.)
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
39
34
34
34
23
23
23
14.4
14.4
14.4
EPC3030G
EPC3031G
EPC3032G
EPC3033G
EPC3034G
EPC3035G
EPC3036G
EPC3037G
EPC3055G
EPC3067G
EPC3107G
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
Series
Parallel
Single Wdg
22.3 x(Ns) 2
27%
.071 xNs
6.1 /Ks
22.3
27%
.071 /Np
6.1 /Kp
22.3
7.5%
.071
2.5
9.9 x(Ns) 2
21%
.047xNs
7.5 /Ks
9.9
21%
.047 /Np
7.5 /Kp
9.9
.047
9%
3.06
12.0 x(Ns) 2
.071 xNs
1%
6.1 /Ks
12.0
1%
.071 /Np
6.1 /Kp
12.0
0%
.071
2.5
5.3 x(Ns) 2
0.4%
.047 xNs
7.5 /Ks
5.3
.047 /Np
0.4%
7.5 /Kp
5.3
0%
.047
3.06
9.65 x(Ns) 2
0%
.071 xNs
6.1 /Ks
9.65
0%
.071 /Np
6.1 /Kp
9.65
.071
0%
2.5
4.3 x(Ns) 2
.047 xNs
0%
7.5 /Ks
4.3
0%
.047 /Np
7.5 /Kp
4.3
0%
.047
3.06
7.63 x(Ns) 2
0%
.071 xNs
6.1 /Ks
7.63
.071 /Np
0%
6.1 /Kp
7.63
.071
0%
2.5
3.4 x(Ns) 2
0%
.047xNs
7.5 /Ks
3.4
0%
.047 /Np
7.5 /Kp
3.4
0%
.047
3.06
27.4 x(Ns) 2
14%
.081xNs
5.2 /Ks
27.4
14%
.081 /Np
5.2 /Kp
27.4
2%
.081
2.1
31.7 x(Ns) 2
.071 xNs
23%
4.0 /Ks
31.7
.071 /Np
23%
4.0 /Kp
31.7
.071
2%
1.6
.071 xNs
50.0 x(Ns)
30%
2.2 /Ks
50.0
30%
.071 /Np
2.2 /Kp
50.0
2%
.071
0.9
• Switching Frequency :
Up to 1 MHz
• Isolation :
500 Vrms •
.028
(.700)
12
Package EFD20-6
Pin 1
I.D.
1
Schematic
1
Notes :
1. Ns = Number of series connections
2. Np = Number of parallel connections
3. Ks = Ns x 6/Ns
4. Kp = 6/Np
12
2
11
3
4
9
5
8
6
7
1:1:1:1:1:1
.854 Max.
(21.70)
.118
.591 (3.00)
(15.00)
6
PCA
EPC30XXG
D.C.
7
.835 Max.
(21.20)
0°-8°
.016
(.400)
.425 Max.
(10.80)
10
.080
(2.03)
1.128
(28.65)
.010
(.250)
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3030G-CSC3107G
Rev. 4
12/18/02
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCB Design
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